Composer -- How to set the variable type as input in the workflow in entry block

Hi Guys.
How to set the variable type as input in the workflow in entry block. It either shows “system” variable or if I try to create a variable it shows a “user” variable. How does the type come as “input” variable.

There is a combobox (Category column), where you can choose the of the variable - user or input.

How to create that combobox (Category column). For now in entry block I can’t see the combobox, only the user type variable can be made. Is there any particular setting to create that combobox.

This is by default, if not - check your Composer version and use the latest version

Currently I am using Composer Version: 8.1.300.33. I have a different project imported in my workspace which has the combobox. But when I am trying to create a project from scratch I am not getting the combobox. Is there anything which I am missing out.

Input only happens on SubCallFlows. Main CallFlows don’t have such option.